/*
* Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#include "PropertyNameArray.h"
#include "JSObject.h"
#include "ScopeChain.h"
#include "Structure.h"
#include "StructureChain.h"
namespace JSC {
static const size_t setThreshold = 20;
void PropertyNameArray::add(StringImpl* identifier)
{
ASSERT(!identifier || identifier == StringImpl::empty() || identifier->isIdentifier());
size_t size = m_data->propertyNameVector().size();
if (size < setThreshold) {
for (size_t i = 0; i < size; ++i) {
if (identifier == m_data->propertyNameVector()[i].impl())
return;
}
} else {
if (m_set.isEmpty()) {
for (size_t i = 0; i < size; ++i)
m_set.add(m_data->propertyNameVector()[i].impl());
}
if (!m_set.add(identifier).second)
return;
}
addKnownUnique(identifier);
}
} // namespace JSC